...Azul, and other towns and farms in…
1875 CE
...Azul, and other towns and farms in an attack that is even bloodier than that of 1872.
Four hundred settlers are killed and three hundred captured, and three hundred thousand head of cattle are carried off.
Alsina answers by attacking the natives, forcing them to fall back, and leaving Fortines on his way south to protect the conquered territories.
He also constructs the three hundred and seventy-four kilometer-long trench named Zanja de Alsina ("Alsina's trench"), built in the center and south of the Buenos Aires Province, that in theory will serve as a limit to the unconquered territories.
With its three meter width and two meter depth, it serves as an obstacle for the transport of cattle by the natives.